RDP Plenum Reinforcing Inserts™ 99.5-03

Part Number:
RDPPRI

Manufacturer:

$42.58
$38.86
(You save $3.72 )
(178 reviews) Write a Review
RDP Plenum Reinforcing Inserts™ 99.5-03

RDP Plenum Reinforcing Inserts™ - Ford 7.3L 99.5-03

These billet 7075 Aluminum plenum inserts are a Riffraff Diesel original design and are patent pending. They are made to allow you to clamp down as hard as needed with T-bolt clamps so that you don't have any boost leaks. Fix your bent and crushed stock plenums with our Inserts as well. This is a budget friendly option to buying full billet plenums. Easy install, no special tools needed.

These were designed so as to add the least restriction possible while providing more than adequate structure for clamping. The Plenum Inserts have been machined to within .164" of the OEM diameter so there will not be any measurable affect on EGT's or cfm flow.

These are sold in a pair.

Riffraff Diesel Performance is committed to 100% Made in the USA on this product. All materials are from USA resources. Every machining step is performed in the USA. Every component is assembled in the USA.

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1999.5-2003 Super Duty, and Excursion Powerstrokes Will Not fit Early 99
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  • 5
    Plenum Reinforcing Inserts

    Posted by Wanderin Beast on Nov 15th 2021

    Solid product, insures a solid lock up for the Plenum.

  • 5
    Plenum reinforcing inserts

    Posted by Jeff S on Oct 19th 2021

    Just a few taps with a wood block seats them in the existing 7.3 plenums. I put them in my 2001 F350, along with better clamps, due to a turbo upgrade. They have a nice taper to help you start them, and they fit snug - they are not going anywhere!

  • 5
    Plenum Inserts

    Posted by 2002 CCLB SD on Jul 19th 2021

    I was hesitant about these until I installed them. My intake plenums were Not-Round!! These will keep your intake plenums from being crushed. I see why Riff Raff sells them!! No regrets!! I would buy again!!

  • 5
    Qual6

    Posted by Austin Funk on Jun 16th 2021

    One of the many necessary design flaw fixes required absolutely required if you own a 7.3 L power stroke.

  • 5
    RDP PLENUM REINFORCING INSERTS™ 99.5-03

    Posted by Jose Torres on May 23rd 2021

    Perfect fit and easy installation!!

  • 5
    Plenum inserts

    Posted by Gerardo B on Apr 12th 2021

    I He-man tightened the clamps for all the boost.

  • 5
    Plenum inserts

    Posted by Tim S. on Apr 10th 2021

    solid quality! They are a snug fit so you have to tap them into place, but they provide a sturdy clamping surface.

  • 5
    Plenum inserts

    Posted by Ken B on Mar 31st 2021

    Awesome quality. First time doing boots because of a massive air leak likely because the clamp wasn’t cranked down enough. These installed quickly and easily with a piece of flat wood and gentle taps from a hammer. Gave me confidence to crank down the new boots and solve the problem. Super fast delivery as always from the Riffraff gang!

  • 5
    Good Idea

    Posted by Jason Richardson on Mar 7th 2021

    This was a great idea, and they are very well made. The Ford ones that are made from thin sheet metal are not strong enough. These fix that issue at a great price.